This just came up as a banner add on my Amazon app.
Enjoy a $0 delivery fee on eligible DoorDash orders and other DashPass benefits with a FREE 2 year DashPass membership for new and current Prime members in Australia.
Subscribed and linked to my DoorDash with out issues.
Edit: For those getting stuck in a “loop” make sure you have a valid card added to your DoorDash account and remove Afterpay if attached.
How long does the FREE DashPass membership last? As long as your Prime membership is active and you have redeemed the Offer, you can get 2 years of FREE DashPass. If your Prime membership ends or is cancelled during the 2 year DashPass membership period, your DashPass membership will cancel automatically and you will lose your FREE access to DashPass. Should you reactivate your Prime membership within 2 years of first activating your FREE DashPass Offer, you will be able to enjoy the remainder of your FREE DashPass membership period, provided that you remain a Prime member. You can re-activate the Offer via the Offer page here at Amazon.com.au.
If you really want to avoid paying after the trial period, try to set a reminder a few days before expiry too.
Uber Eats got me with that once, since they charged about 2 days prior to the start of your next billing period.
Can't see that being the case for Dashpass right now, but might change by then.